 BourvilLéon Dutilleul | Léon Dutilleul |
 Joan GreenwoodSusan | Susan |
| GGérard OuryMaurice | Maurice |
 Henri CrémieuxMr. Lécuyer | Mr. Lécuyer |
 Roger TrévilleFélix Burdin | Félix Burdin |
 Jacques ErwinGaston | Gaston |
 Frédéric O'BradyThe Medical Specialist | The Medical Specialist |
| RRené WormsAn Employee at the Ministry | An Employee at the Ministry |
 Nina MyralMrs. Eloise | Mrs. Eloise |
 André DalibertNot listed | Not listed |
| NNicole RicheThe Lady of the Second | The Lady of the Second |
 Germaine ReuverMrs. Ménard, the Concierge | Mrs. Ménard, the Concierge |
 Jeanne VéniatThe South American | The South American |
 Georges FlateauMr Robert | Mr Robert |
 Edmond BeauchampArturo | Arturo |
 Georges LannesThe Director of the 'Prison de la Santé' | The Director of the 'Prison de la Santé' |
 Marcelle ArnoldGermaine | Germaine |
 Raymond SouplexJean-Paul | Jean-Paul |
 Nicolas AmatoThe First Agent (uncredited) | The First Agent (uncredited) |
 Georgette AnysMaria (uncredited) | Maria (uncredited) |
| AAlfred Arlais(uncredited) | (uncredited) |
 Maurice BiraudA colleague of Léon (uncredited) | A colleague of Léon (uncredited) |
| GGérard Buhr(uncredited) | (uncredited) |
 Marcel CharveyThe bartender (uncredited) | The bartender (uncredited) |
 Dominique DavrayA model (uncredited) | A model (uncredited) |
| SSkip FarrellMaurice (uncredited) | Maurice (uncredited) |
| CCharlie Fawcett(uncredited) | (uncredited) |
| FFignolitaThe negress (uncredited) | The negress (uncredited) |
| CCharles Jarrel(uncredited) | (uncredited) |
 Franck MauriceThe Second Agent (uncredited) | The Second Agent (uncredited) |
